Cephaloscyllium signourum, Flagtail swellshark

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Cephaloscyllium signourum Last, Séret & White, 2008

Flagtail swellshark
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Cephaloscyllium signourum   AquaMaps   Data sources: GBIF OBIS
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Image of Cephaloscyllium signourum (Flagtail swellshark)
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drawing shows typical species in Scyliorhinidae.

Classification / Names Populärnamn | synonymer | Catalog of Fishes(Släkte, Arter) | ITIS | CoL | WoRMS | Cloffa

Elasmobranchii (hajar och rockor) (sharks and rays) > Carcharhiniformes (Ground sharks) > Scyliorhinidae (Cat sharks)
Etymology: Cephaloscyllium: Greek, kephale = head + skylion = dogfish (Ref. 80388);  signourum: Name from Latin 'signum' for flag and the Greek 'oura' for tail, refers to the distinctive flag-like dark marking on the terminal lobe of the caudal fin.  More on authors: Last, Séret & White.

Environment: milieu / climate zone / depth range / distribution range Ekologi

; marina bentopelagisk; djupintervall 480 - 700 m (Ref. 76946), usually - m (Ref. ).   Tropical; 0°C -

Utbredning Länder | FAO områden | Ekosystem | Förekomster | Point map | Utplanteringar | Faunafri

Western Pacific: Australia; possibly occurring off the islands of New Caledonia, Fiji, and Vanuatu.

Size / Vikt / Age

Maturity: Lm ?  range ? - ? cm
Max length : 74.1 cm TL (female)

Short description Morfologi | Morfometri

This medium-sized species has the following set of characters which was based on the holotype: head 7.5% TL in height, trunk 16.3% TL in width; origin of first dorsal-fin is over the anterior pelvic-fin base; prenarial 3.6% TL in length; preorbital snout length is 2.0 times prenarial length, 3.0 in prepectoral length, 6.6 in prepelvic length; snout-vent length long, 51.7% TL; nostril width 2.7% TL; eye-spiracle space narrow, 0.5% TL; pectoral fin medium-sized, its height 12.8% TL, posterior margin 11.9% TL; anal fin tall, 4.0% TL; anal-caudal space is 5.0% TL; precaudal length is 76% TL; interdorsal space is 6.6% TL; teeth with 3 well-developed cusps near symphysis of upper jaw; mostly unicuspidate flank denticles; back without the greatly enlarged denticles; adult clasper unknown; vertebral centra 115-116; tooth count high, 84 teeth in upper jaws, 97 in lower jaws; color of upper half of body medium brown, with a variegated pattern that is not clearly demarcated from the ventral surface; dark saddles (10) evident on body and tail; dorsal fins are pale variegated; dark blotch absent over gills; marking on posterior margin of terminal lobe of caudal fin dark, anteriorly directed, V-shaped; upper surface of pectoral-fin with a dark brown central blotch; centered over ventral origin of caudal fin is a well-developed saddle; ventral surface is uniformly greyish or white in color; juveniles are pale with dark transverse markings appearing as narrow bars and hollow saddles; markings between spiracles not separated into two unconnected pseudo-ocelli (Ref. 76946).

Biologi     Ordlista (t.ex. epibenthic)

Life cycle and mating behavior Könsmognad | Reproduktion | Lek | Ägg | Fecundity | Larver

Main reference Upload your references | referenser | Koordinator : Compagno, Leonard J.V. | Medarbetare

Last, P.R., B. Séret and W.T. White, 2008. New swellsharks (Cephaloscyllium: Scyliorhinidae) from the Indo-Australian region. In Last, P.R., White, W.T. & Pogonoski, J.J. (eds.): Descriptions of New Australian Chondrichthyans. CSIRO Marine and Atmospheric Research Paper no. 22. (Ref. 76946)

IUCN Red List Status (Ref. 124695)

  Data deficient (DD) ; Date assessed: 17 February 2015

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

FAO - Publication: search | FishSource |

Ytterligare information

Länder
FAO områden
Ekosystem
Förekomster
Utplanteringar
Stocks
Ekologi
Föda
Födoslag
Födointag
Näringsinnehåll
Populärnamn
synonymer
Metabolik
Predatorer
Ekotoxikologi
Reproduktion
Könsmognad
Lek
Spawning aggregation
Fecundity
Ägg
Egg development
Age/Size
Tillväxt
Length-weight
Length-length
Length-frequencies
Morfometri
Morfologi
Larver
Larvdynamik
Rekrytering
Abundans
BRUVS
referenser
Vattenbruk
Vattenbruksprofil
Avelslinjer
Genetik
Allelfrekvenser
Ärftlighet
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Behandling
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Mass conversion
Medarbetare
Bilder
Stamps, Coins Misc.
Ljud
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Hastighet
Simsätt
Gälyta
Otoliths
Hjärnstorlek
Syn

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Special reports

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Internet-källor

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes: Släkte, Arter | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: genome, nucleotide | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | Tree of Life | Wikipedia: Go, sök | World Records Freshwater Fishing | Zoobank | Zoological Record

Estimates based on models

Preferred temperature (Ref. 115969): 6.2 - 10.2, mean 7.7 °C (based on 119 cells).
Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00331 (0.00170 - 0.00646), b=3.15 (2.97 - 3.33), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Trofisk nivå (Ref. 69278):  4.1   ±0.5 se; based on size and trophs of closest relatives
Resiliens (Ref. 120179):  Låg, lägsta populationsfördubblingstid 4,5-14 år (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153):  High vulnerability (56 of 100) .